/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:25:40,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:25:40,921 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 17:25:40,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:25:40,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:25:40,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:25:40,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:25:40,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:25:40,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:25:40,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:25:40,954 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:25:40,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:25:40,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:25:40,955 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:25:40,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:25:40,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:25:40,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:25:40,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:25:40,956 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:25:40,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:25:40,956 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:25:40,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:25:40,957 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:25:40,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:25:40,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:25:40,958 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:25:40,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:25:40,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:25:40,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:25:40,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:25:40,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:25:40,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:25:40,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:25:40,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:25:40,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:25:40,960 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:25:41,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:25:41,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:25:41,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:25:41,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:25:41,233 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:25:41,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2023-08-25 17:25:42,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:25:42,853 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:25:42,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_10-equ_rc.i [2023-08-25 17:25:42,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd151cce3/8643395133eb45959a2a8cf2af1056c3/FLAG4a4738cba [2023-08-25 17:25:42,874 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd151cce3/8643395133eb45959a2a8cf2af1056c3 [2023-08-25 17:25:42,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:25:42,876 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:25:42,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:25:42,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:25:42,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:25:42,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:25:42" (1/1) ... [2023-08-25 17:25:42,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf46880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:42, skipping insertion in model container [2023-08-25 17:25:42,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:25:42" (1/1) ... [2023-08-25 17:25:42,917 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:25:43,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:25:43,201 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:25:43,221 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-25 17:25:43,222 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-25 17:25:43,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:25:43,291 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:25:43,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43 WrapperNode [2023-08-25 17:25:43,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:25:43,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:25:43,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:25:43,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:25:43,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,329 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2023-08-25 17:25:43,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:25:43,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:25:43,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:25:43,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:25:43,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:25:43,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:25:43,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:25:43,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:25:43,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (1/1) ... [2023-08-25 17:25:43,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:25:43,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:25:43,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 17:25:43,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 17:25:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:25:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:25:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:25:43,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:25:43,417 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 17:25:43,545 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:25:43,547 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:25:43,660 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:25:43,664 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:25:43,664 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:25:43,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:25:43 BoogieIcfgContainer [2023-08-25 17:25:43,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:25:43,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:25:43,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:25:43,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:25:43,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:25:42" (1/3) ... [2023-08-25 17:25:43,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307b963b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:25:43, skipping insertion in model container [2023-08-25 17:25:43,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:25:43" (2/3) ... [2023-08-25 17:25:43,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307b963b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:25:43, skipping insertion in model container [2023-08-25 17:25:43,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:25:43" (3/3) ... [2023-08-25 17:25:43,670 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2023-08-25 17:25:43,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:25:43,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-25 17:25:43,681 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:25:43,719 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:25:43,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 86 transitions, 177 flow [2023-08-25 17:25:43,769 INFO L124 PetriNetUnfolderBase]: 1/85 cut-off events. [2023-08-25 17:25:43,769 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:25:43,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 1/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-25 17:25:43,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 86 transitions, 177 flow [2023-08-25 17:25:43,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 85 transitions, 173 flow [2023-08-25 17:25:43,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:25:43,787 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 85 transitions, 173 flow [2023-08-25 17:25:43,789 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 85 transitions, 173 flow [2023-08-25 17:25:43,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 173 flow [2023-08-25 17:25:43,804 INFO L124 PetriNetUnfolderBase]: 1/85 cut-off events. [2023-08-25 17:25:43,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:25:43,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 1/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-08-25 17:25:43,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 570 [2023-08-25 17:25:47,061 INFO L134 LiptonReduction]: Checked pairs total: 2739 [2023-08-25 17:25:47,062 INFO L136 LiptonReduction]: Total number of compositions: 69 [2023-08-25 17:25:47,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:25:47,080 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43b2b53e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:25:47,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-08-25 17:25:47,089 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:25:47,089 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-08-25 17:25:47,089 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:25:47,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:25:47,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:25:47,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:25:47,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:25:47,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1094503810, now seen corresponding path program 1 times [2023-08-25 17:25:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:25:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589456315] [2023-08-25 17:25:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:25:47,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:25:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:25:47,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:25:47,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:25:47,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589456315] [2023-08-25 17:25:47,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589456315] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:25:47,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:25:47,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:25:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452557827] [2023-08-25 17:25:47,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:25:47,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:25:47,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:25:47,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:25:47,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:25:47,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 155 [2023-08-25 17:25:47,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:47,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:25:47,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 155 [2023-08-25 17:25:47,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:25:47,761 INFO L124 PetriNetUnfolderBase]: 108/241 cut-off events. [2023-08-25 17:25:47,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:25:47,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 241 events. 108/241 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 917 event pairs, 30 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 478. Up to 160 conditions per place. [2023-08-25 17:25:47,763 INFO L140 encePairwiseOnDemand]: 144/155 looper letters, 31 selfloop transitions, 22 changer transitions 8/61 dead transitions. [2023-08-25 17:25:47,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 61 transitions, 247 flow [2023-08-25 17:25:47,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:25:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:25:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 416 transitions. [2023-08-25 17:25:47,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44731182795698926 [2023-08-25 17:25:47,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 416 transitions. [2023-08-25 17:25:47,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 416 transitions. [2023-08-25 17:25:47,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:25:47,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 416 transitions. [2023-08-25 17:25:47,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:47,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:47,781 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:47,782 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 416 transitions. [2023-08-25 17:25:47,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 61 transitions, 247 flow [2023-08-25 17:25:47,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 61 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:25:47,785 INFO L231 Difference]: Finished difference. Result has 33 places, 41 transitions, 192 flow [2023-08-25 17:25:47,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=33, PETRI_TRANSITIONS=41} [2023-08-25 17:25:47,788 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 9 predicate places. [2023-08-25 17:25:47,788 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 41 transitions, 192 flow [2023-08-25 17:25:47,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:47,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:25:47,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:25:47,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:25:47,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:25:47,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:25:47,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2063186106, now seen corresponding path program 1 times [2023-08-25 17:25:47,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:25:47,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292960540] [2023-08-25 17:25:47,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:25:47,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:25:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:25:47,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:25:47,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:25:47,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292960540] [2023-08-25 17:25:47,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292960540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:25:47,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:25:47,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:25:47,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508117706] [2023-08-25 17:25:47,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:25:47,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:25:47,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:25:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:25:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:25:47,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 155 [2023-08-25 17:25:47,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 41 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:47,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:25:47,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 155 [2023-08-25 17:25:47,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:25:48,028 INFO L124 PetriNetUnfolderBase]: 140/310 cut-off events. [2023-08-25 17:25:48,028 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2023-08-25 17:25:48,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 310 events. 140/310 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1281 event pairs, 26 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 920. Up to 215 conditions per place. [2023-08-25 17:25:48,030 INFO L140 encePairwiseOnDemand]: 144/155 looper letters, 48 selfloop transitions, 26 changer transitions 19/93 dead transitions. [2023-08-25 17:25:48,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 93 transitions, 602 flow [2023-08-25 17:25:48,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:25:48,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:25:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 464 transitions. [2023-08-25 17:25:48,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4989247311827957 [2023-08-25 17:25:48,032 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 464 transitions. [2023-08-25 17:25:48,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 464 transitions. [2023-08-25 17:25:48,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:25:48,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 464 transitions. [2023-08-25 17:25:48,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:48,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:48,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:48,036 INFO L175 Difference]: Start difference. First operand has 33 places, 41 transitions, 192 flow. Second operand 6 states and 464 transitions. [2023-08-25 17:25:48,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 93 transitions, 602 flow [2023-08-25 17:25:48,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 93 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:25:48,039 INFO L231 Difference]: Finished difference. Result has 43 places, 62 transitions, 416 flow [2023-08-25 17:25:48,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=43, PETRI_TRANSITIONS=62} [2023-08-25 17:25:48,040 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 19 predicate places. [2023-08-25 17:25:48,040 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 62 transitions, 416 flow [2023-08-25 17:25:48,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:25:48,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:25:48,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:25:48,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:25:48,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-08-25 17:25:48,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:25:48,041 INFO L85 PathProgramCache]: Analyzing trace with hash 714477190, now seen corresponding path program 1 times [2023-08-25 17:25:48,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:25:48,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787762392] [2023-08-25 17:25:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:25:48,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:25:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:25:48,084 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:25:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:25:48,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:25:48,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:25:48,112 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-08-25 17:25:48,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-08-25 17:25:48,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-08-25 17:25:48,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-08-25 17:25:48,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:25:48,119 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 17:25:48,123 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:25:48,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:25:48,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:25:48 BasicIcfg [2023-08-25 17:25:48,157 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:25:48,159 INFO L158 Benchmark]: Toolchain (without parser) took 5281.40ms. Allocated memory was 356.5MB in the beginning and 457.2MB in the end (delta: 100.7MB). Free memory was 331.4MB in the beginning and 278.7MB in the end (delta: 52.7MB). Peak memory consumption was 155.2MB. Max. memory is 16.0GB. [2023-08-25 17:25:48,159 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 333.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:25:48,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.23ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 303.4MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 17:25:48,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.24ms. Allocated memory is still 356.5MB. Free memory was 303.4MB in the beginning and 301.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:25:48,162 INFO L158 Benchmark]: Boogie Preprocessor took 17.31ms. Allocated memory is still 356.5MB. Free memory was 301.2MB in the beginning and 299.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:25:48,163 INFO L158 Benchmark]: RCFGBuilder took 318.43ms. Allocated memory is still 356.5MB. Free memory was 299.5MB in the beginning and 327.0MB in the end (delta: -27.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. [2023-08-25 17:25:48,163 INFO L158 Benchmark]: TraceAbstraction took 4490.79ms. Allocated memory was 356.5MB in the beginning and 457.2MB in the end (delta: 100.7MB). Free memory was 326.6MB in the beginning and 278.7MB in the end (delta: 47.9MB). Peak memory consumption was 149.6MB. Max. memory is 16.0GB. [2023-08-25 17:25:48,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 356.5MB. Free memory is still 333.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 414.23ms. Allocated memory is still 356.5MB. Free memory was 331.1MB in the beginning and 303.4MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.24ms. Allocated memory is still 356.5MB. Free memory was 303.4MB in the beginning and 301.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.31ms. Allocated memory is still 356.5MB. Free memory was 301.2MB in the beginning and 299.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 318.43ms. Allocated memory is still 356.5MB. Free memory was 299.5MB in the beginning and 327.0MB in the end (delta: -27.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.0GB. * TraceAbstraction took 4490.79ms. Allocated memory was 356.5MB in the beginning and 457.2MB in the end (delta: 100.7MB). Free memory was 326.6MB in the beginning and 278.7MB in the end (delta: 47.9MB). Peak memory consumption was 149.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 88 PlacesBefore, 24 PlacesAfterwards, 85 TransitionsBefore, 20 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 7 FixpointIterations, 47 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 2739 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1016, independent: 772, independent conditional: 0, independent unconditional: 772, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 276, independent: 249, independent conditional: 0, independent unconditional: 249, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1016, independent: 523, independent conditional: 0, independent unconditional: 523, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 276, unknown conditional: 0, unknown unconditional: 276] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1019]: Data race detected Data race detected The following path leads to a data race: [L989-L993] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] 0 int x = __VERIFIER_nondet_int(); [L1004] 0 pthread_t id; [L1005] 0 struct s *s; [L1006] 0 int *d; [L1007] 0 pthread_mutex_t *m; [L1008] COND FALSE 0 !(\read(x)) [L1012] 0 s = &B [L1013] 0 x++ [L1015] 0 m = &s->mutex [L1016] 0 d = &s->datum [L1017] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={1:0}, B={2:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, pthread_create(&id,((void *)0),t_fun,((void *)0))=-1, s={2:0}, x++=37, x++=39, x=1] [L1019] 0 *d = 8 VAL [A={1:0}, B={2:0}, arg={0:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, pthread_mutex_lock(&A.mutex)=0, s={2:0}, x++=37, x++=39, x=1] [L996] 1 B.datum = 5 VAL [A={1:0}, B={2:0}, arg={0:0}, arg={0:0}] [L1019] 0 *d = 8 VAL [*d = 8=40, A={1:0}, B={2:0}, arg={0:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x++=37, x++=39, x=1] [L1019] 0 *d = 8 VAL [*d = 8=40, A={1:0}, B.datum = 5=38, B={2:0}, arg={0:0}, arg={0:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x++=37, x++=39, x=1] Now there is a data race (on the heap) between C: B.datum = 5 [996] and C: *d = 8 [1019] - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 996]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 13 mSDtfsCounter, 275 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 17:25:48,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...